Window sash and frame



June 9, 1931. E. E. HART wI`NDOw SASH AND FRAME Filed Oct. 5, 1929 INI'ENTOR. l z: z. e:

Fatente .Falle 9, 1933 LSOQZE UNITED TA ES PA ENT OFFICE EDGAB E. HABT, OF LTNCOIIN PARK, MIGHIGAN WINDOW sAsH AND :FRAME Application filed October 5, 1929. Serial No, 897,481.

. justed so that a take up for wear is provided and a tight fitting of the parts maintained at all times.

Another object of the invention is the provision of a 'window sash and frame which will be simple in structure, economical of manufacture, and highly eflicient in use.` Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter described and claimed.

The invention will be best understood by a reference to the accompanying drawings which form a part of this speclfication and m which,

Fig. 1 is a front elevational view of the invention. k j

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1.

Fig. 3 is a view taken on line 3-3 of Fig. 1. Fig. 4: is a sectional view similar to Fig. 3 showlng a modified form of the invention.

Fig. 5 isa fragmentary s ectional view taken on line 5-5 of Fig. 4.

The frame and sash' are Preferably made from metal and the frame is formed hollow with the rear wall 7 and the side walls 8 and 9. The front wall 10 is inwardly oifset to form with the wedge shaped looking or adjustinlgstrip 12 the dovetailed groove or recess 1 and In said po'rtion 13 is provided for engagement with the U shaped stri 15 which en ages at one 'side the angu arly turned si e portion 16 of the wedge orad tion 1 'on the opposite side of the wed e or adjusting strip 12 engages the angular y turned portion 18 of the wall 10.

A retainin strip 19 is mounted in engagement with t e ortion 13 and engages the .50 side 20 of the ad usting strip 21, the opposite metal.

'stri justin strip 1 2. An angularly turned porside of which has the inclined portion 22 and the portion 23 extending parallel with'the wall or side 20 and en a ing one face of the' U Sha d strip `15. olt 24 is projected throug the adjusting strip 12 and threaded into a nut25 positioned rearwardly of the portion 13. A similar adjusting bolt 26 is projected through the adjusting stri 21.

i The window sash is'formed with si e walls comprising a wedge shaped portion 27 having 'the angularly turned ends 28 and 29 which are spaced apart and embrace the window pane 30. The top rail 31 is formed U Shaped to embrace the window pane 30,' and -the bottom rail 32 is formed U shaped with the inclined side wall 33 engaging the inclined' side wall 34 of the sill strip 35 which rests upon the sill 36 formed from U shaped metal. The top 37 is also formed from' U shaped 7 0 Secured to the top rail 31 is a metallic 38 having the V' portion 39 engaging wit the V portion 40 on the strip 41 which is mounted on the bottom rail 42 of the upper window. The top rail of this up er window is of the same formation as the ottom rail of the co-operating window.

In operation, the windows are. slidably. mounted in the frame in the usual manner and move relatively-to each other. `Weights and cords may be usedwith the windows in the usual manner if desiredbut by properly adjusting the strips 12 frictional engagement of the side rails of the window in the dovetailed grooves may be such that the use of cords and weights may be dispensed with.

It is to be noted that the ends of the portions 16 and 17 of-the adjusting Strips are spaced from the portion 13 so that when the window surfaces wear through use, this strip may be moved inwardly to afl'ord the necessary adjustment to assure a ti-ght fit. Similarly, all rattling of the window sash in 'the frame may be thus prevented. The V members 39 and 40 through their engagement will serve as effective weather Strips so that an eflicient mounting of the window for prevention of drafts and the like is provided. r

- and serves as an effective means of eliminating the rattle commonly present in the- 4 window mountings.

While I have illustrated and preferred form of my invention, I do not wish to limit myself to the precise details of structure shown, but desire to avail myself of such variations and modifications as may come Within the scope of the appended Claims. Havin thus described my inventionwhat I claim 1s new and desire to secure 'by Letters Patent is:

1. A window sash and frame of the class described comprisin a sash having side walls inwardly offset at t eir inner face, said in- Wardly o flset -portion having an inclined side wall; and a movable wedge-sha ed adjusting strip having its opposlte si e walls inclined, one of said side walls cooperating With the inclined side wall of Said sash to provide' a dovetailed groove; and a window frame having wedge-shaped side walls engageable in said dove-tailed groove and slidable therein.

2. A window sash and frame of the class described comprising a sash having side walls inwardlyofl'set at their inner face, said inwardly offset portion having an inclined side wall; and a movable wedge-shaped adjusting strip having its opposite side walls inclined, oneof Said side walls cooperating with the inclined side wall of said sash to provide a dove-tailed groove; a window frame having wedge-Shaped side walls engageable ,in said .dove-tailed groove and slidable therein; and means for moving Said adjusting strip in- Wardly and outwardly for bearing the same against the inclined surfaces of Said .window ra1 s.

3. A window sash and. frame of the class l described comprising a frame having its opposite side walls inwardlyoffset'and provided with an inclined face; a movable wedgeshaped adjusting strip having its opposlte faces inclined,`one of said op osite faces' cooperating with Said inclined ace to provide 'a dove-tailed groove; a retaining strip mountedon the side walls of Said frame and having one of its faces directed towards said adjustmg strip and inclined for cooperating therewith to provide an additional dovetailed groove; a window sash having opposite side rail's wedge-sh'aped and slidably mounted in said grooves and means for movmg said adjusting strip inwardly and outdescribed the strip mounted On the side walls'of said frame and having one of its faces directed towards said adjusting strip and inclined for cooperating therewith to provide an additional dove-tailed groove; a window sash having opposite side rails wedge-shaped and Slidably mounted in said grooves;--means for moving said adjusting strip inwardly and outwardly for adjusting the friction of the same against Said rail; and means for moving Said retain- `ing strip inwardly and outwardly for adjusting the friction of same on said rail.

5. A window sash and frame of the class described, comprising: a sash having side walls inwardly Ofl'set at their inner face, Said -inwardly ofi'set portion having an inclined side wall; and a movable wedge-shaped adjusting strip having its opposlte side walls inclined, one of said side walls co-operating With the inclined side wall of said sash to provide a dove-tailed groove; a window frame having wedge-shaped side walls engageable in said dove-tailed groove and slidable therein; and means for moving Said adjusting strip inwardly and outward y for bearing the same against the inclined surfaces of said window rails; and an angularly turned portion on said adjusting strip and' serving as a guide portion in the movements of Said strip.

In testimony whereof have signed the foregoing specication.

- EDGAR E. HART 

